Dragon Ball - episode 22 - 22 Jul, 1986

The second match begins. Yamcha tries his best moves against Jackie Chun, but he can't even land a punch because the old man is far too quick for him. The fight ends when Jackie Chun pushes Yamcha out of the ring with his energy. The third match between Nam and Ranfan begins. Nam is fighting for prize money to buy water for his village. Nam hits Ranfan and she starts to cry, but the crying is just an act. She takes advantage of Nam's hesitation and quickly attacks. When Nam is able to defend her attacks easily, she takes off her clothes to distract him. Jackie Chun begins hooting wildly, and Yamcha recognizes this laughter as Master Roshi's. He realizes that Jackie Chun is Roshi. Nam closes his eyes and is able to beat Ranfan. (Source: Wikipedia)